| 1. catechu [ Synonyms: black catechu] | |
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Extract of the heartwood of Acacia catechu used for dyeing and tanning and preserving fishnets and sails; formerly used medicinally
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| 2. catechu [ Synonyms: acacia catechu, jerusalem thorn] | |
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East Indian spiny tree having twice-pinnate leaves and yellow flowers followed by flat pods; source of black catechu
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